I believe that people with down syndrome are more likely than the general population to develop Alzheimer's disease in late life.
Answer:
The central nervous system is made up of the brain and the spinal cord. The brain communicates with the rest of the body through the spinal cord, which runs from the base of the brain all the way down the back. ... Messages travel from the brain into the spinal cord and out to the body's nerves to tell the body what to do.
Explanation:
It is normal to start anywhere between 11 and 17 years old.
